[Qemu-devel] [Bug 988128] Re: smbd crashes when called with "smb ports = 0"

[Jan Kiszka]

It communicates via standard input (just like inetd). Obviously newer
versions do not need this anymore, and smbd will detect in which mode it
is supposed to run.

That switch was once introduce in 157777ef3e to add "Samba 3 support".
Maybe you can check with the samba guys if that switch was actually ever
required or since when it became redundant.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/988128

Title:
  smbd crashes when called with "smb ports = 0"

Status in QEMU:
  New

Bug description:
  The smb.conf generated by qemu-kvm contains a "smb ports = 0" directive. This
  causes at least version 3.6.4 of Samba to crash with

  [0] vostro:/tmp/qemu-smb.6836-0# smbd -i -s smb.conf
  Unable to setup corepath for smbd: Operation not permitted
  smbd version 3.6.4 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2011
  open_sockets_smbd: No sockets available to bind to.
  ===============================================================
  Abnormal server exit: open_sockets_smbd() failed
  ===============================================================
  BACKTRACE: 6 stack frames:
   #0 smbd(log_stack_trace+0x1a) [0x7fe50c14f8ba]
   #1 smbd(+0x6a0743) [0x7fe50c3bd743]
   #2 smbd(+0x6a0a41) [0x7fe50c3bda41]
   #3 smbd(main+0xa52) [0x7fe50be26d42]
   #4 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fe508ac0ead]
   #5 smbd(+0x10a6b9) [0x7fe50be276b9]

  Changing "smb ports" to a non-privilileged port works around the
  issue.

  I'd like to help fix this, but I am not sure what qemu-kvm's intention is 
here.
  Zero is not a valid port, and the smb.conf manpage does not describe any
  special meaning of zero here. I found that previous versions of samba 
apparently
  did not bind to any port if zero was specified - but in that case, how is
  qemu communicating with samba?

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/988128/+subscriptions